Overview Of Sentinel-2

Abstract

GMES is a joint initiative of the European Commission (EC) and the European Space Agency (ESA), designed to establish a European capacity for the provision and use of operational monitoring information for environment and security applications. ESA's role in GMES is to provide the definition and the development of the space-and groundrelated system elements. GMES Sentinel-2 mission provides continuity to services relying on multi-spectral highresolution optical observations over global terrestrial surfaces. The key mission objectives for Sentinel-2 are: (1) to provide systematic global acquisitions of high-resolution multi-spectral imagery with a high revisit frequency, (2) to provide enhanced continuity of multi-spectral imagery provided by the SPOT series of satellites, and (3) to provide observations for the next generation of operational products such as land-cover maps, land change detection maps, and geophysical variables. Consequently, Sentinel-2 will directly contribute to the Land Monitoring, Emergency Response, and Security services. The corresponding user requirements have driven the design towards a dependable multi-spectral Earth-observation system featuring the MSI with 13 spectral bands spanning from the visible and the near infrared to the short wave infrared. The spatial resolution varies from 10 m to 60 m depending on the spectral band with a 290 km field of view. This unique combination of high spatial resolution, wide field of view and large spectral coverage will represent a major step forward compared to current multi-spectral missions. The mission foresees a series of satellites, each having a 7.25year lifetime (extendable to 12 years) over a 20-year period starting with the launch of Sentinel-2A foreseen by mid-2014. During full operations two identical satellites will be maintained in the same sun synchronous orbit with a phase delay of 180° providing a revisit time of five days at the equator.

Fusion of Sentinel-1A and Sentinel-2A data for land cover mapping: a case study in the lower Magdalena region, Colombia

“…For vegetation mapping Sentinel-2 is especially relevant for the presence of two new bands in the red edge spectrum, at 705 and 740 nm (Delegido, Verrelst, Alonso, & Moreno, 2011). In other words, Sentinel-2 ′ s unique combination of characteristics represents an unprecedented potential for land cover characterization and mapping at regional and global scales (ESA, 2012;Spoto et al, 2012).…”

Spatial patterns and driving factors of carbon stocks in mangrove forests on Hainan Island, China

“…In addition, the Sentinel-2 satellite platform has the advantage of a short revisit period (5 days), which makes it easier to find images with low cloud cover, especially in tropical regions (Castillo et al, 2017). The Sentinel-2 images used in this study were Level-1C products downloaded from the United States Geological Survey (USGS; https://earth explo rer.usgs.gov/) (Spoto et al, 2012).…”

Application of Lithological Mapping Based on Advanced Hyperspectral Imager (AHSI) Imagery Onboard Gaofen-5 (GF-5) Satellite

“…The SASI data is not publicly available, and readers can contact authors for some sample data. Sentinel-2 is a multi-spectral mission consisting of a pair of optical Earth observation satellites: Sentinel-2A (S2A) and Sentinel-2B (S2B), operated by the European Space Agency (ESA) within the framework of the Copernicus program [46]. Each Sentinel-2 satellite carries a single multi-spectral instrument (MSI) that uses a push-broom concept and provides 13 spectral channels ranging from the visible (VIS) to the short-wavelength infrared (SWIR) at different spatial resolutions (10, 20, and 60 m) [47,48].…”